The Food and Drug Administration confirmed last week that it had found evidence of the deadly bacteria E. coli in samples of Nestle’s Tollhouse refrigerated cookie dough.
The cookie dough samples tested were made at a Nestle plant in Danville, Va.
Investigators found no traces of the bacteria on equipment in the plant.
Glendale-based Nestle USA issued a voluntary recall of all of its cookie dough products on June 19, when investigators informed the company that they suspected an E. coli outbreak had originated in a company plant.
The outbreak has since affected about 70 people in 29 states.
The affected samples were marked with a notation reading “Best before 10 JUN 2009,” according to a company statement.
“Nestle continues to work closely and in full cooperation with the FDA on the ongoing investigation,” Nestle said in a statement. ”We are very concerned about those who have become ill from E. coli 0157:H7, and deeply regret that this has occurred.”
